1900834 has 16 divisors (see below), whose sum is σ = 3177720. Its totient is φ = 846720.

The previous prime is 1900831. The next prime is 1900861. The reversal of 1900834 is 4380091.

It can be written as a sum of positive squares in 4 ways, for example, as 635209 + 1265625 = 797^2 + 1125^2 .

It is a super-2 number, since 2×1900834² = 7226339791112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1900799 and 1900808.

It is not an unprimeable number, because it can be changed into a prime (1900831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507 + ... + 2014.

2^1900834 is an apocalyptic number.

1900834 is a deficient number, since it is larger than the sum of its proper divisors (1276886).

1900834 is a wasteful number, since it uses less digits than its factorization.

1900834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1900834 is about 1378.7073656146. The cubic root of 1900834 is about 123.8743524346.

The spelling of 1900834 in words is "one million, nine hundred thousand, eight hundred thirty-four".